FIELD: manufacture of building materials; production of porous artificial articles; production of granulated heat-insulating material, light filler for concretes.
SUBSTANCE: proposed method includes preparation of high-modulus water glass from micro-silica suspension in sodium hydroxide solution at atmospheric pressure, hydro-thermal treatment of suspension at temperature of 95 C continued for 10 min for obtaining high-modulus water glass followed by heat treatment of granules at temperature of 350-400 C for swelling of granules. High-modulus water glass obtained during hydro-thermal treatment is cooled to temperature 18-20 C on plate conveyer equipped with water jacket; from conveyer material is fed to crushing sorting plant; heat treatment of technological crushed granules is performed in drying drum for 10 min.
EFFECT: correction of technological process; reduced duration of heat treatment; reduced power requirements.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| RAW MIX AND A PROCESS FOR MANUFACTURING GRANULATED HEAT-INSULATION MATERIAL | 2005 |
|
RU2290379C1 |
| RAW MIXTURE AND METHOD FOR PRODUCTION OF GRANULATED HEAT INSULATING MATERIAL | 2004 |
|
RU2267468C1 |
| RAW MIX AND A PROCESS FOR MANUFACTURING GRANULATED HEAT-INSULATION MATERIAL | 2005 |
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RU2290376C1 |
| RAW MIX FOR GRANULATED HEAT-INSULATION MATERIAL AND A METHOD FOR MANUFACTURE THEREOF | 2004 |
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RU2274620C1 |
| RAW MIX AND A PROCESS FOR MANUFACTURING GRANULATED HEAT-INSULATION MATERIAL | 2005 |
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RU2290378C1 |
| RAW MIX AND A PROCESS FOR MANUFACTURING GRANULATED HEAT-INSULATION MATERIAL | 2005 |
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RU2290377C1 |
| RAW MIX AND A METHOD FOR MANUFACTURING GRANULATED HEAT- INSULATION MATERIAL | 2004 |
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RU2257358C1 |
| RAW MIX AND A METHOD OF PRODUCTION OF A GRANULAR HEAT-INSULATION MATERIAL | 2004 |
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| RAW MIX AND A METHOD FOR MANUFACTURING GRANULATED HEAT-INSULATING MATERIAL | 2005 |
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RU2295508C1 |
| RAW MEAL AND A METHOD FOR MANUFACTURING GRANULATED HEAT-INSULATION MATERIAL | 2002 |
|
RU2220927C1 |
